Mildred Patty Baena often bedded the former Governator in the bed he shared with wife Maria Shriver. Photo: myspace

The housekeeper who had an affair with Arnold Schwarzenegger often bedded the former governor in the same bed he shared with wife Maria Shriver, according to a new report.

Mildred Patty Baena had an obsession with Shriver and wanted to look just like Maria — even putting on her clothes and jewelry as well as sharing intimate moments with Ahnold in Shriver’s bed, TMZ reported today.

Baena, 50, once even bragged that she was “more of a wife to Arnold than Maria” because she was always there for him, the site reported.

A source said Shriver once noticed that a piece of jewelry was missing and interviewed the staff about it, TMZ reported.

“She was working for Arnold and Maria until about four weeks ago. But all of a sudden, out of nowhere, she was told there was no longer work for her,” a source told RadarOnline.com, refuting earlier claims that Baena had decided to retire after 20 years of service.

“[Baena] took it hard,” the source said.

But a scorned Baena didn’t cower in front of the powerful former governor.

The fuming baby mama threatened to go public, forcing Schwarzenegger to ‘fess up to his wife. While it isn’t clear if Baena followed through on her threat, a friend of hers told RadarOnline the battle with Schwarzenegger was “a nuclear blow-up.”

Patty “was furious that the father of her . . . son would callously fire her from a job after decades of loyal service,” the friend said.

“She admitted to friends how she finally wanted to tell the secret, that she had kept faithfully for 14 years, to the world.”